MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites that host further PDF files. This suggests a multi-stage attack, likely for phishing or distributing additional malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7bfd9ea9e---13541091507.pdf
- https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081a0c2badb9---93490548643.pdf
- http://elementsgogreen.com/userfiles/file/supoteraguzibix.pdf
- https://aquaprosmart.com/userfiles/files/tixili.pdf
- http://bociany.sk/media/file/83424708745.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/ld28md0crvcf7rhod6r9sefbvj/wusanubejuvodepesado.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b0fd9a37faa---59334251540.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea76b9e5d1---34602167828.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/5ptbupkbj5s3hanrcofd0vtf3q/rebuxemiv.pdf
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f68ccbfc53---tatibumaxipez.pdf
- http://boothbayharborshipyard.com/userfiles/file/86756876499.pdf
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/2eaab4dcc94a480442c71474d96852fb/46657221888.pdf
- https://www.tunnel.de/files/uploaded/file/kowolojeripibomow.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16075cf94920f3---44412061994.pdf
- http://mondoacquapiscine.com/userfiles/files/43134265459.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e5f1c1fe1---50777890504.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d077e27fba---57701579052.pdf
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/up4pe2dcmfo25u1duf3ku3d1l0/47013808382.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b112c4203---6540530376.pdf
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/714250d1ba345c314889c2ebf036bf4a/nubug.pdf
- http://afghansolar.com/userfiles/file/63049979801.pdf
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b0e3dbc6ee9---tatoputuvuzabixobedazad.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072560f6e02c---tejupudator.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/ce7c62491cf9facba58810a678dc9ba7/16391922929.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ba4d55c1f65---dutunam.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=my+favourite+pet+is
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d64d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD64D | 16792 bytes |
font_01_sfnt_off0000ee5f.bine1d3566b823c8b909963d6fdddba08c1d4f10d57c7d1b93401d50bcf7e892f5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE5F | 16448 bytes |
font_02_sfnt_off000118e0.bina3e15f549c1df6b51e7b1bd038c7df16180d68e9fd9ea81b02a415cc7934e159 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E0 | 10472 bytes |
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